Continuous batch tunnel washer and method
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United States of America Patent
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Dec 25, 2018
Grant Date -
Dec 8, 2011
app pub date -
Jun 3, 2011
filing date -
Jun 3, 2010
priority date (Note) -
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Abstract
A method of washing fabric articles in a tunnel washer that includes moving the fabric articles from the intake of the washer to the discharge of the washer and through multiple modules or sectors. Liquid can be counter flowed in the washer interior along a flow path that is generally opposite the direction of travel of the fabric articles. A dual use zone includes multiple of the modules or sectors. In a dual use zone, a module or modules can be used to both wash and thereafter rinse the fabric articles. While counterflow rinsing, the flow rate can be maintained at a selected flow rate or flow pressure head. One or more booster pumps can optionally be employed to maintain constant counterflow rinsing flow rate or constant counterflow rinsing pressure head.
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